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Add test for ARRAY.inject(:+) vs ARRAY.sum #140

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Add test for ARRAY.inject(:+) vs ARRAY.sum #140

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b5f02dd
Add test for `ARRAY.inject(:+)` vs `ARRAY.sum`
jrmhaig Dec 23, 2017
0941994
Test for Ruby 2.4.1
jrmhaig Dec 23, 2017
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1 change: 1 addition & 0 deletions .travis.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ cache: bundler
bundler_args: --retry=3 --jobs=3
language: ruby
rvm:
- 2.4.1
- 2.3.0
- 2.1.8
- 2.2.4
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19 changes: 19 additions & 0 deletions code/enumerable/inject-symbol-plus-vs-sum.rb
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@@ -0,0 +1,19 @@
require "rubygems"
require "benchmark/ips"

ARRAY = (1..1000).to_a

def fast
ARRAY.sum
end

def slow
ARRAY.inject(:+)
end

Benchmark.ips do |x|
x.report('sum') { fast }
x.report('inject symbol plus') { slow }

x.compare!
end